Question
If 3792 = 39 and 7242 = 22, then 2958 =
?Solution
(3 × 7) + (9 × 2) = 21 + 18 = 39 (7 × 2) + (4 × 2) = 14 + 8 = 22 Similarly, (2 × 9) + (5 × 8) = 18 + 40 = 58
If 2x + y = 15 and xy = 18, then the value of (4x² - y²)
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If 125x3Â - 64y3Â = (Ax + By) (Dy2Â - Cx2Â + 20xy) , then the value of A + C - 2B + 3D is:
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Find the number in place of ?
6, 14, 26, ?, 106, 214
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